== sanity test 398c: run fio to test AIO ================= 19:09:02 (1787785742) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.668618 s, 62.7 MB/s osc.lustre-OST0000-osc-ffff980bb9344800.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=146729: Wed Aug 26 19:12:13 2026 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(10.0MiB/180219msec); 0 zone resets slat (usec): min=30, max=11928, avg=266.42, stdev=774.93 clat (msec): min=186, max=1964, avg=1124.79, stdev=250.24 lat (msec): min=198, max=1964, avg=1125.06, stdev=250.22 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 709], 10.00th=[ 810], 20.00th=[ 936], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1267], 80.00th=[ 1334], 90.00th=[ 1418], 95.00th=[ 1502], | 99.00th=[ 1636], 99.50th=[ 1754], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 167, per=25.15%, avg=57.09, stdev=28.39, samples=352 iops : min= 1, max= 41, avg=13.77, stdev= 7.13, samples=352 lat (msec) : 250=0.66%, 500=1.29%, 750=4.88%, 1000=21.25%, 2000=71.91% cpu : usr=0.04%, sys=0.24%, ctx=1969, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=146730: Wed Aug 26 19:12:13 2026 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(10.0MiB/180222msec); 0 zone resets slat (usec): min=22, max=18234, avg=284.21, stdev=918.41 clat (msec): min=190, max=1980, avg=1125.01, stdev=254.58 lat (msec): min=191, max=1980, avg=1125.30, stdev=254.63 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 709], 10.00th=[ 818], 20.00th=[ 936], | 30.00th=[ 1020], 40.00th=[ 1083], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1418], 95.00th=[ 1502], | 99.00th=[ 1703], 99.50th=[ 1821], 99.90th=[ 1955], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 216, per=25.87%, avg=58.72, stdev=29.20, samples=342 iops : min= 1, max= 54, avg=14.18, stdev= 7.31, samples=342 lat (msec) : 250=1.21%, 500=0.66%, 750=4.80%, 1000=20.62%, 2000=72.70% cpu : usr=0.05%, sys=0.21%, ctx=1678, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=146731: Wed Aug 26 19:12:13 2026 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(10.0MiB/180220msec); 0 zone resets slat (usec): min=24, max=17279, avg=276.82, stdev=975.51 clat (msec): min=188, max=2115, avg=1124.63, stdev=254.68 lat (msec): min=198, max=2115, avg=1124.91, stdev=254.69 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 709], 10.00th=[ 802], 20.00th=[ 944], | 30.00th=[ 1020], 40.00th=[ 1083], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1418], 95.00th=[ 1502], | 99.00th=[ 1687], 99.50th=[ 1838], 99.90th=[ 2039], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 156, per=24.93%, avg=56.59, stdev=25.44, samples=355 iops : min= 1, max= 39, avg=13.65, stdev= 6.36, samples=355 lat (msec) : 250=0.94%, 500=0.94%, 750=5.31%, 1000=20.43%, 2000=72.27% lat (msec) : >=2000=0.12% cpu : usr=0.05%, sys=0.22%, ctx=1853, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=146732: Wed Aug 26 19:12:13 2026 write: IOPS=14, BW=56.9KiB/s (58.3kB/s)(10.0MiB/179910msec); 0 zone resets slat (usec): min=26, max=17916, avg=280.83, stdev=959.73 clat (msec): min=146, max=2049, avg=1123.50, stdev=257.75 lat (msec): min=146, max=2050, avg=1123.79, stdev=257.79 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 701], 10.00th=[ 802], 20.00th=[ 936], | 30.00th=[ 1020], 40.00th=[ 1083], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1267], 80.00th=[ 1334], 90.00th=[ 1418], 95.00th=[ 1502], | 99.00th=[ 1687], 99.50th=[ 1821], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 196, per=24.91%, avg=56.55, stdev=24.17, samples=355 iops : min= 1, max= 49, avg=13.64, stdev= 6.05, samples=355 lat (msec) : 250=0.86%, 500=1.33%, 750=5.78%, 1000=19.53%, 2000=72.46% lat (msec) : >=2000=0.04% cpu : usr=0.05%, sys=0.21%, ctx=1832, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): WRITE: bw=227KiB/s (233kB/s), 56.8KiB/s-56.9KiB/s (58.2kB/s-58.3kB/s), io=40.0MiB (41.9MB), run=179910-180222msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=146768: Wed Aug 26 19:14:17 2026 read: IOPS=10, BW=43.7KiB/s (44.8kB/s)(5048KiB/115451msec) slat (usec): min=27, max=56840, avg=14879.47, stdev=7678.90 clat (msec): min=25, max=1315, avg=444.51, stdev=115.02 lat (msec): min=32, max=1322, avg=459.39, stdev=116.03 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 296], 10.00th=[ 330], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 439], 60.00th=[ 468], | 70.00th=[ 493], 80.00th=[ 527], 90.00th=[ 575], 95.00th=[ 617], | 99.00th=[ 735], 99.50th=[ 844], 99.90th=[ 1301], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 104, per=25.15%, avg=43.51, stdev=19.20, samples=227 iops : min= 1, max= 26, avg=10.36, stdev= 4.80, samples=227 write: IOPS=11, BW=44.0KiB/s (46.1kB/s)(5192KiB/115451msec); 0 zone resets slat (usec): min=27, max=17864, avg=387.85, stdev=1058.90 clat (msec): min=139, max=1834, avg=975.03, stdev=258.55 lat (msec): min=140, max=1845, avg=975.42, stdev=258.56 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 584], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1318], 95.00th=[ 1401], | 99.00th=[ 1703], 99.50th=[ 1770], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 102, per=24.82%, avg=44.68, stdev=18.60, samples=227 iops : min= 1, max= 25, avg=10.65, stdev= 4.70, samples=227 lat (msec) : 50=0.27%, 100=0.39%, 250=0.98%, 500=34.80%, 750=21.72% lat (msec) : 1000=19.96%, 2000=21.88% cpu : usr=0.09%, sys=0.69%, ctx=4540, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146769: Wed Aug 26 19:14:17 2026 read: IOPS=10, BW=42.9KiB/s (43.9kB/s)(4976KiB/115989msec) slat (usec): min=3066, max=71801, avg=15225.91, stdev=8030.90 clat (msec): min=17, max=857, avg=440.08, stdev=96.40 lat (msec): min=38, max=895, avg=455.32, stdev=97.59 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 305], 10.00th=[ 330], 20.00th=[ 363], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 489], 80.00th=[ 514], 90.00th=[ 558], 95.00th=[ 600], | 99.00th=[ 709], 99.50th=[ 735], 99.90th=[ 844], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 120, per=24.61%, avg=42.58, stdev=21.50, samples=228 iops : min= 1, max= 30, avg=10.13, stdev= 5.41, samples=228 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(5264KiB/115989msec); 0 zone resets slat (usec): min=29, max=21022, avg=444.17, stdev=1362.84 clat (msec): min=292, max=1841, avg=977.25, stdev=246.45 lat (msec): min=292, max=1843, avg=977.70, stdev=246.42 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 592], 10.00th=[ 676], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1385], | 99.00th=[ 1670], 99.50th=[ 1770], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 103, per=25.21%, avg=45.38, stdev=18.85, samples=227 iops : min= 1, max= 25, avg=10.83, stdev= 4.71, samples=227 lat (msec) : 20=0.04%, 50=0.08%, 100=0.12%, 250=0.35%, 500=36.68% lat (msec) : 750=20.23%, 1000=20.98%, 2000=21.52% cpu : usr=0.11%, sys=0.70%, ctx=4089, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146770: Wed Aug 26 19:14:17 2026 read: IOPS=10, BW=42.0KiB/s (44.0kB/s)(4984KiB/115947msec) slat (usec): min=3106, max=62927, avg=15220.98, stdev=7831.01 clat (msec): min=60, max=865, avg=446.00, stdev=98.37 lat (msec): min=76, max=875, avg=461.23, stdev=99.30 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 305], 10.00th=[ 330], 20.00th=[ 368], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 523], 90.00th=[ 567], 95.00th=[ 617], | 99.00th=[ 709], 99.50th=[ 776], 99.90th=[ 852], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 119, per=24.71%, avg=42.75, stdev=20.99, samples=228 iops : min= 1, max= 29, avg=10.17, stdev= 5.25, samples=228 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(5256KiB/115947msec); 0 zone resets slat (usec): min=34, max=16224, avg=360.06, stdev=976.26 clat (msec): min=107, max=1854, avg=972.10, stdev=248.55 lat (msec): min=108, max=1854, avg=972.46, stdev=248.58 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 584], 10.00th=[ 676], 20.00th=[ 768], | 30.00th=[ 827], 40.00th=[ 877], 50.00th=[ 944], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1401], | 99.00th=[ 1620], 99.50th=[ 1720], 99.90th=[ 1787], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 103, per=25.20%, avg=45.36, stdev=19.14, samples=226 iops : min= 1, max= 25, avg=10.83, stdev= 4.82, samples=226 lat (msec) : 100=0.12%, 250=0.43%, 500=35.66%, 750=21.02%, 1000=21.09% lat (msec) : 2000=21.68% cpu : usr=0.11%, sys=0.65%, ctx=4287, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146771: Wed Aug 26 19:14:17 2026 read: IOPS=10, BW=43.8KiB/s (44.9kB/s)(5060KiB/115451msec) slat (usec): min=3251, max=59702, avg=15126.17, stdev=8110.26 clat (msec): min=9, max=962, avg=447.76, stdev=103.39 lat (msec): min=17, max=971, avg=462.90, stdev=104.34 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 305], 10.00th=[ 330], 20.00th=[ 363], | 30.00th=[ 393], 40.00th=[ 422], 50.00th=[ 447], 60.00th=[ 468], | 70.00th=[ 498], 80.00th=[ 527], 90.00th=[ 575], 95.00th=[ 625], | 99.00th=[ 718], 99.50th=[ 768], 99.90th=[ 894], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 128, per=25.23%, avg=43.66, stdev=19.62, samples=227 iops : min= 1, max= 32, avg=10.40, stdev= 4.93, samples=227 write: IOPS=11, BW=44.9KiB/s (45.9kB/s)(5180KiB/115451msec); 0 zone resets slat (usec): min=34, max=21436, avg=393.82, stdev=1090.68 clat (msec): min=264, max=1847, avg=971.93, stdev=243.17 lat (msec): min=264, max=1847, avg=972.32, stdev=243.20 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 776], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1385], | 99.00th=[ 1620], 99.50th=[ 1720], 99.90th=[ 1821], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 104, per=24.67%, avg=44.40, stdev=18.96, samples=228 iops : min= 1, max= 26, avg=10.59, stdev= 4.75, samples=228 lat (msec) : 10=0.04%, 20=0.04%, 50=0.08%, 100=0.08%, 250=0.59% lat (msec) : 500=35.23%, 750=21.84%, 1000=21.21%, 2000=20.90% cpu : usr=0.11%, sys=0.69%, ctx=4620, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=173KiB/s (177kB/s), 42.9KiB/s-43.8KiB/s (43.9kB/s-44.9kB/s), io=19.6MiB (20.5MB), run=115451-115989msec WRITE: bw=180KiB/s (184kB/s), 44.9KiB/s-45.4KiB/s (45.9kB/s-46.5kB/s), io=20.4MiB (21.4MB), run=115451-115989msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=146791: Wed Aug 26 19:14:26 2026 read: IOPS=1, BW=60.3MiB/s (63.3MB/s)(40.0MiB/663msec) slat (nsec): min=29356k, max=29356k, avg=29355585.00, stdev= 0.00 clat (nsec): min=602651k, max=602651k, avg=602651408.00, stdev= 0.00 lat (nsec): min=632012k, max=632012k, avg=632012488.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.11%, ctx=7, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=60.3MiB/s (63.3MB/s), 60.3MiB/s-60.3MiB/s (63.3MB/s-63.3MB/s), io=40.0MiB (41.9MB), run=663-663msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout